JP2023549489A - Furniture drive device for moving a movably supported furniture part relative to a furniture cabinet - Google Patents

Abstract

Furniture drive device (4) for moving a furniture part (3) movably supported relative to a furniture cabinet (2), comprising: a support (9) for attachment to the furniture cabinet (2); an actuation arm assembly (5a, 5b, 5c, 5d, 5e) comprising at least one movably supported actuation arm (5a, 5b, 5c, 5d, 5e) for moving a movable furniture part (3) arranged on a support (9); 5) a spring device (10) for applying a force to the actuating arm assembly (5), which spring device (10) applies a force to the actuating arm assembly (5) via at least one point of action (18); a spring device (10) connected to the spring device (10), a transmission mechanism (35) for transmitting the force of the spring device (10) to the actuating arm assembly (5), at least one rotatably supported adjustment element (19a); an adjusting device (19) comprising: an adjusting device (19) in which the relative position of the at least one point of action (18) with respect to the actuating arm assembly (5) is adjustable by rotation of the adjusting element (19a); and the furniture drive (4) has at least one overload protection device (33), the overload protection device being configured such that the adjustment element (19a) rotates with a torque below a predetermined torque. When the adjustment element (19a) is rotated with a torque exceeding a predetermined torque, the adjustment element (19a) is connected to the transmission mechanism (35). Furniture drive (4) separate from 35).

Description

The present invention is a furniture drive device for moving a furniture part movably supported relative to a furniture cabinet, comprising:
- supports for attachment to furniture cabinets,
- an actuation arm assembly with at least one movably supported actuation arm for moving a movable furniture part arranged on a support;
- a spring device for applying a force to the actuating arm assembly, the spring device being connected to the actuating arm assembly via at least one point of action;
- a transmission mechanism for transmitting the force of the spring device to the actuating arm assembly;
- an adjustment device with at least one rotatably supported adjustment element, in which the relative position of the at least one point of action with respect to the actuating arm assembly can be adjusted by rotation of the adjustment element; Regarding a drive device.

Furthermore, the invention relates to a piece of furniture comprising a furniture cabinet, a furniture part movably supported relative to the furniture cabinet, and a furniture drive of the described type for moving the movable furniture part.

The support of such a furniture drive is typically mounted in or on the side wall surface of the furniture cabinet, and the actuating arm assembly of the furniture drive is preloaded by at least one spring device. , connected to movable furniture parts in the assembled state.

EP 3 708 753 A1 shows a furniture drive of the type mentioned at the outset for moving a furniture flap, in which case a coil spring is provided to compensate for the weight of the furniture flap. It is provided. By adjusting the corresponding support, this coil spring can be compressed differently, so that the force of the coil spring can be adapted to different weights of the furniture flap. Furthermore, the furniture drive has a torque limiting device, so that it is prevented that the corresponding support gets caught in the end stop. By rotating the driver element with a tool, the corresponding support can be adjusted. The torque limiting device limits the torque in the first direction of rotation of the driver element, so that the corresponding support does not catch on the end stop. In contrast, in the second direction of rotation of the driver element, the torque is completely transmitted.

China Patent Application No. 106175199 shows a furniture drive device in which the force of a spring device is applied via a double-arm deflection lever to an actuating arm for moving a furniture flap. Transmissible.

International Publication No. 2018/192819 discloses a furniture drive device with generic features. A rotatable tool receptacle is provided in the front end region of the housing of the furniture drive, in which case the spindle nut can be moved along the spindle by rotating the tool receptacle with the tool. can. A spring package is supported on the spindle nut, and the force of the spring package on the actuation arm assembly can be varied by adjustable support of the spindle nut along the spindle.

The adjustment device of the furniture drive for adjusting the force of the spring device applied to the actuating arm assembly is typically operated by a rotary tool, such as a screwdriver. In the case of an unskilled and/or poorly trained assembly worker, - by rotating the rotating tool with high torques - the active point of the spring device is pressed into the end position and, by applying a large force, it can be removed there. There is a risk of getting caught. Such jams are often difficult to eliminate and damage to furniture drive components is inevitable.

If the adjustment distance is long, the installer is also likely to operate the adjustment device with a cordless screwdriver, which further increases the risk of damage to the furniture drive.

The object of the invention is to provide a furniture drive of the type mentioned at the outset, which avoids the above-mentioned disadvantages.

This problem is solved according to the invention by the features of patent claim 1. Further advantageous embodiments of the invention are defined in the dependent claims.

According to the invention, the furniture drive has at least one overload protection device, which protects the adjustment element when the adjustment element is rotated with a torque below a predetermined torque. It is envisaged that the adjusting element is coupled to the transmission mechanism and is decoupled from the transmission mechanism when the adjusting element is rotated with a torque exceeding a predetermined torque.

The proposed overload protection device allows for damage-free operation of the adjusting device, especially in the case of user errors. If a predetermined torque applied to the adjusting element is exceeded, the overload protection device separates the adjusting element and the active point of the spring device from each other.

According to a possible embodiment of the invention, the overload protection device comprises:
- has at least one spring element, preferably a compression spring, the rotatably supported shaft and the adjusting element being able to be pressed against each other by the force of the spring element, and/or - the adjusting element at least one toothing arranged, preferably an end toothing, and/or - having at least one shaft rotatably supported and driveable by the adjusting element, the adjusting element comprising: connected to the shaft when the adjusting element is rotated with a torque less than a predetermined torque, separated from the shaft when the adjusting element is rotated with a torque above a predetermined torque, and/or - It has at least one rotatable shaft with a longitudinal direction, which shaft is subject to the force of the spring element in the longitudinal direction of the shaft when the adjusting element is rotated with a torque exceeding a predetermined torque. and/or - has at least one rotatable shaft with a first toothing that can mesh with a second toothing of the adjusting element; and/or - at least one spring element with an aperture, in which case the at least one spring element and the adjustment element are arranged in such a way that the adjustment element is accessible via the aperture in the at least one spring element; arranged and/or - has at least one support device, in or on which the adjustment element and/or optionally provided rotatable shaft is rotatable; is supported by

By means of a spring element for applying a force to at least one shaft, which is separate from the spring arrangement, it is possible to define the triggering force of the overload protection device and thus the switching operation.

Further details and advantages of the invention will be explained with reference to the following description of the drawings.

1 is a perspective view of a piece of furniture with movable furniture parts; FIG. 1 is an exploded view of a piece of furniture with movable furniture parts; FIG. It is a perspective view of a furniture drive device. FIG. 3 is another perspective view of the furniture drive device. Figure 3 shows the furniture drive in a closed position. Figure 3 shows the furniture drive in an open position. It is a perspective view showing a furniture drive device. Figure 4a is an enlarged detail of Figure 4a; FIG. 3 shows an adjusting device acting on the active point; FIG. 3 shows an adjusting device acting on the active point; FIG. 3 shows an adjusting device acting on the active point; FIG. 3 shows an adjusting device acting on the active point; FIG. 3 shows a perspective view of the adjusting device acting on the active point in a slightly modified embodiment; Figure 6a is an enlarged detail of Figure 6a;

FIG. 1a shows a perspective view of a piece of furniture 1, which comprises a furniture cabinet 2, a furniture part 3 movably supported relative to the furniture cabinet 2, and a movable furniture part 3 for moving the furniture part 3. at least one furniture drive device 4. The furniture 1 has a furniture board 6 in the form of a side wall, a top surface 7 and a bottom surface 8. In the illustrated embodiment, the furniture part 3 is designed as a furniture flap 3 a that can be lifted relative to the furniture cabinet 2 .

In the illustrated embodiment, the furniture drive 4 is integrated at least partially, preferably substantially completely, into the furniture board 6 of the furniture cabinet 2. Of course, the furniture drive device 4 can also be arranged outside the wall thickness of the furniture board 6.

The movable furniture part 3 is supported movably between a closed position in which it hides the furniture cabinet 2 and an open position in which it is raised relative to the furniture cabinet 2.

Of course, the furniture drive 4 can also be integrated in a horizontally extending furniture board, i.e., for example in the upper side 7, in the lower side 8 and/or in a shelf arranged between the upper side 7 and the lower side 8. You can also do that. In such a case, the movable furniture part 3 is supported pivotably relative to the furniture cabinet 2 about a vertically extending axis in the installation position.

The furniture drive device 4 has an actuation arm assembly 5 for moving the movable furniture part 3 and at least one spring device 10 (FIG. 1b) for applying a force to the actuation arm assembly 5.

FIG. 1 b shows the furniture 1 in disassembled condition, in which two furniture drives 4 , preferably of identical construction, are provided for moving the movable furniture parts 3 . The furniture drives 4 each have a support 9 to be attached to the furniture cabinet 2 .

According to one embodiment, the support 9 is accommodated in the assembled state at least in certain areas, preferably substantially completely, inside a recess 11 in the side wall formed as a furniture board 6. It may be assumed that this is the case. The support 9 may be substantially flush with the end surface 6a of the furniture board 6 in the assembled state.

The recess 11 is formed, for example, as a blind hole, and when assembling, the pocket-shaped recess 11 of the furniture board 6 is inserted into the support body 9 from the front (that is, from the narrow end surface 6a of the furniture board 6). can be inserted into.

A cover 12 is provided in the front end region of the support 9, in which at least one movably supported actuating arm 5a, 5b, 5c, 5d, 5e (FIG. 2a) of the actuating arm assembly 5 is provided. In the relative position, it can be guided through the cover 12.

FIG. 2a shows the furniture drive 4 in a perspective view, the support 9 having at least one housing wall 9a which is designed in a planar manner and can rest against the furniture cabinet 2. FIG. A pivotable support part 14 is provided on the housing wall 9a and is supported pivotably on the support 9 about a stationary joint axis 13. The spring device 10 can be supported, ie in the first end region, on a stationary joint shaft 13 . The spring device 10 may include at least one helical spring, preferably at least one compression spring, or alternatively a gas compression spring.

The furniture drive device 4 has a transmission mechanism 35 for transmitting the force of the spring device 10 to the actuation arm assembly 5.

In the illustrated embodiment, the second end region of the spring device 10 acts on a pressure member 20, which is preferably centered around a stationary joint axis 15 via an adjustable point of action 18. It is pivotally connected to a pivotable intermediate lever 16.

The adjustment device 19 allows the force of the spring device 10 on the actuating arm assembly 5 to be adjusted. The adjusting device 19 has an adjusting element 19a rotatable about the axis of rotation (R), the position of the point of action 18 of the spring device 10 relative to the actuating arm assembly 5 preferably being threaded. Adjustment is possible along the mountain section 17 by rotation of the adjustment element 19a about the axis of rotation (R).

The thread section 17 has a longitudinal direction (L). The angle between the longitudinal direction (L) of the threaded section 17 and the axis of rotation (R) of the adjusting element 19a can be varied during movement of the actuating arm assembly 5. By means of the angularly movable coupling device 25, the rotational movement of the adjusting element 19a can be transmitted to the thread section 17, whereby the thread section 17 is brought into rotational movement, so that the point of action 18 is 17.

The angularly movable coupling device 25 comprises at least one elastic member, preferably a bellows, a rubber molded element, a helical spring coupling, and/or at least one transmission, preferably a bevel gear transmission, and/or It may have a joint, preferably a universal joint or a cardan joint.

Preferably, it is envisaged that the adjustment element 19a of the adjustment device 19 is arranged in the front region of the support 9, facing the movable furniture part 3 in the assembled state of the furniture drive 4. There is. This allows the adjustment element 19a to be easily operated from the front with a tool.

In the illustrated embodiment, at least one shaft 28 is provided for driving the threaded section 17, which can be driven by the adjusting element 19a, the at least one shaft 28 being arranged in the guide 30, preferably in a slot. , or the guide 30, preferably supported along a long hole so as to be movable relative to the support 9. Thereby, compensating movements of the components of the furniture drive 4 caused by the angularly movable coupling device 25 can be at least partially compensated.

The shaft 28 is arranged in or on the support device 29 , the guide 30 is arranged on the support device 29 , and the pin 32 , which is fixedly supported on the support 9 , is arranged on the support device 29 . is engaged with the guide 30 of. During the compensation movement, the support device 29 is movable relative to the stationary pin 32.

The actuation arm assembly 5 includes at least one and preferably a plurality of actuation arms 5a, 5b, 5c, 5d, 5e for moving the movable furniture part 3. Attached to the movable furniture part 3 is a fitting part 21, which has at least one or more attachment points 22 and is removable to the actuating arm 5e of the actuating arm assembly 5. can be locked to FIG. 2a shows the locked state between the actuating arm 5e and the metal fitting member 21.

A cover 12 is provided at the front end of the housing wall 9a, which cover has at least laterally projecting flanges 12a. In the illustrated embodiment, the flange 12a is substantially ring-shaped and forms a depth stop for the support 9, which can rest on the end face 6a of the furniture board 6.

FIG. 2b shows the furniture drive 4 of FIG. 2a, in which the support 9 is closed off by the second casing wall 9b. The first housing wall 9a and the second housing wall 9b are each designed in a planar manner so as to rest against the furniture cabinet 2 and together form a substantially rectangular support 9. The housing walls 9a, 9b are located parallel to each other at a distance, with a front opening 23 being formed between the housing walls 9a, 9b. A cover 12 is arranged in the area of this opening 23, allowing passage of a tool for operating the adjusting device 19.

FIG. 3a shows a furniture drive 4 with a support 9 in a side view. The thread section 17 is arranged on an intermediate lever 16 which is supported in a pivotable manner about a joint shaft 15 which is arranged stationary on the support 9 . In the illustrated drawing, the point of action 18 of the spring device 10 is located in the area adjacent to the joint axis 15 of the intermediate lever 16, so that the spring device 10 exerts a minimum torque on the actuating arm assembly 5. The imaginary connection line between the joint axis 15 of the intermediate lever 16 and the point of action 18 of the spring arrangement 10 forms a relatively short lever arm, so that a minimum torque acts on the actuating arm assembly 5. .

The axis of rotation (R) of the adjusting element 19a of the adjusting device 19 and the longitudinal direction (L) of the thread section 17 are at an angle to each other, this angle being changeable during movement of the actuating arm assembly 5. . In the illustrated closed position of the furniture drive 4, - due to the angularly movable arrangement in the rotational axis (R) and in the longitudinal direction (L) - the actuating arms 5a to 5e of the actuating arm assembly 5 are connected to the spring device 10 and the adjustment The advantages of this construction can be clearly seen on the basis of FIG. 3a, since together with the device 19 they occupy a very compact position relative to each other.

The adjusting element 19a and the rotatable threaded section 17 are supported in such a way that they can be moved angularly relative to each other, i.e. upon movement of the actuating arm assembly 5, so that the spring arrangement 10 The adjustment device 19 for force adjustment and the actuating arm assembly 5 can occupy different positions with respect to each other. The components of the furniture drive 4 can thereby be arranged one above the other and thus close together. Thereby, the furniture drive 4 can be constructed more compactly, the adjustment distance of the spring device 10 in the thread section 17 can be increased, and a higher power range of the furniture drive 4 can be covered. .

The support 9 may be of substantially rectangular design, and preferably the ratio of the length (L1) of the support 9 to the height (H1) of the support 9 is greater than 1:0.7. is also larger, preferably larger than 1:0.5. By setting the dimensions in this manner, the height (H1) of the support body 9 can be reduced. As a result, the height of the recess 11 (FIG. 1b) of the furniture board 6 can be set small, the effort required to manufacture the recess 11 is small, and the furniture board 6 is less likely to become brittle.

FIG. 3b shows the furniture drive device 4 of FIG. 3a with a minimum force adjustment of the spring device 10, with the actuating arm assembly 5 with the actuating arms 5a-5e in the open position. The angle between the axis of rotation (R) of the adjusting element 19a and the longitudinal direction (L) of the thread section 17 is reduced relative to the closed position shown in FIG. 3a.

The actuation arm assembly 5 includes a first actuation arm 5a pivotable about a first joint axis 26 and at least one second actuation arm 5b supported pivotable about a second joint axis 27. It has The first joint shaft 26 and the second joint shaft 27 are located spaced apart from each other in the longitudinal direction (L2) of the support body 9, and the second joint shaft 27 is smaller than the first joint shaft 26. are also arranged in the front region of the support 9.

The intermediate lever 16 is connected directly to the second (front) actuating arm 5b via a thrust lever 24, which is preferably arc-shaped. That is, the first actuating arm 5a is not directly connected to the thrust lever 24 via the joint shaft, but is slidably guided inside the thrust lever 24. This is well illustrated in Figure 2a. This allows an improved direct introduction of force from the spring device 10 into the actuating arm assembly 5.

FIG. 4a shows a furniture drive 4 in a perspective view, which limits the maximum torque between the adjusting element 19a of the adjusting device 19 and the point of action 18 of the spring device 10. It has an overload protection device 33 for

The overload protection device 33 connects the adjusting element 19a to the transmission mechanism 35 when the adjusting element 19a is rotated with a torque less than a predetermined torque, and connects the adjusting element 19a to the transmission mechanism 35 when the adjusting element 19a is rotated with a torque exceeding the predetermined torque. The adjustment element 19a is configured to be separated from the transmission mechanism 35 when the adjustment element 19a is moved.

In the illustrated embodiment, the overload protection device 33 has at least one spring element 34, for example in the form of a compression spring. The shaft 28 can be pressed against the adjusting element 19a of the adjusting device 19 by the force of the spring element 34. Preferably, it is provided that the shaft 28 can be pressed against the adjusting element 19a of the adjusting device 19 in the axial direction of the shaft 28 by the force of the spring element 34.

It is preferably provided that the axis of rotation (R) of the adjusting element 19a and the longitudinal direction (L3) of the at least one shaft 28 extend coaxially with one another.

The adjusting element 19a and the shaft 28 may be rotatably connected to each other via cooperating toothings 37a, 37b (FIGS. 5a to 5d). When the adjusting element 19a is rotated with a torque less than a predetermined torque, the adjusting element 19a is connected to the shaft 28. When the adjusting element 19a is rotated with a torque exceeding a predetermined torque, the adjusting element 19a is decoupled from the transmission mechanism 35. That is, if the torque applied to the adjusting element 19a is exceeded, the spring element 34 is compressed, in which case the adjusting element 19a and the shaft 28 can be separated from each other.

In FIG. 4b, the enclosed area of FIG. 4a is shown enlarged. The support 9 of the furniture drive 4 can be clamped and fixed in position inside the recess 11 (FIG. 1b) of the furniture board 6 by means of the mounting device 31, which has at least one rotatable tightening element 31a.

FIG. 5a shows a perspective view of an adjusting device 19 for adjusting the position of the active point 18 of the spring device 10. The rotatable adjusting element 19a can have a receiving device 39 (FIG. 6b) for a tool, preferably a screwdriver, and the point of action 18 can be activated by rotating the receiving device 39 with the tool, preferably a screwdriver. It is adjustable along the mountain section 17.

The adjusting element 19a and/or the shaft 28 are rotatably supported on a support device 29. The support device 29 has the already described guide 30 in which the pin 32 of the support 9 is guided with play.

According to a possible embodiment of the invention, the overload protection device 33 comprises:
- with at least one spring element 34, preferably a compression spring, the rotatably supported shaft 28 and the adjusting element 19a can be pressed against each other by the force of the spring element 34 and/or - has at least one toothing 37a, preferably an end toothing, arranged on the adjusting element 19a, and/or - has at least one shaft 28 which is rotatably supported and can be driven by the adjusting element 19a. The adjusting element 19a is connected to the shaft 28 when the adjusting element 19a is rotated with a torque less than a predetermined torque, and is connected to the shaft 28 when the adjusting element 19a is rotated with a torque exceeding a predetermined torque. is separate from the shaft 28 and/or has: - at least one rotatable shaft 28 with a longitudinal direction (L3), which shaft 28 is able to actuate the adjusting element 19a with a torque above a predetermined torque; is displaceable in the longitudinal direction (L3) of the shaft (28) against the force of the spring element (34) when rotated, and/or - the second tooth row 37a of the adjusting element 19a; at least one rotatable shaft 28 with a first toothing 37b capable of meshing with the rotatable shaft 28;
- has at least one support device 29 in or on which the adjusting element 19a and/or the rotatable shaft 28 that is optionally provided are rotatable; Supported.

The shaft 28 can be connected to the working point 18, for example, via cooperating toothings 38a, 38b, preferably via a bevel gear transmission, preferably via the threaded section 17.

FIG. 5b shows the connection between the adjusting element 19a and the shaft 28, in which the cooperating tooth rows 37a, 37b mesh with each other. This is the case if the adjusting element 19a is rotated with a torque less than a predetermined torque.

FIG. 5c shows the case of overload when the adjusting element 19a is rotated with a torque exceeding a predetermined torque. When a critical torque is exceeded, the adjusting element 19a and the shaft 28 are rotated relative to each other, in which case the adjusting element 19a and the shaft 28 are rotated axially relative to each other by means of cooperating toothings 37a, 37b. When spaced apart, spring element 34 is compressed. Thereby, the shaft 28 can be separated from the rotational movement of the adjusting element 19a.

FIG. 5d shows the encircled area of FIG. 5c in an enlarged view, in which case the toothing 37a of the adjusting element 19a and the toothing 37b of the shaft 28 do not mesh with each other. This situation corresponds to the case of overload, in which case the shaft 28 is decoupled from the rotational movement of the adjusting element 19a.

FIG. 6a shows an adjusting device 19 acting on the active point 18 in a slightly modified embodiment. Adjusting element 19a and shaft 28 are rotatably accommodated inside a support device 29 and are pressed together by the force of a spring element 34 in the form of a compression spring.

The spring element 34 forms an opening 34a, in which case the spring element 34 and the adjustment element 19a are arranged with respect to each other in such a way that the adjustment element 19a is accessible via the opening 34a of the spring element 34. .

If the torque applied to the adjusting element 19a is exceeded, after overcoming the force of the spring element 34 the tooth rows 37a, 37b are disengaged from each other, in which case the spring element 34 is compressed. When the adjusting element 19a is again rotated with a torque less than the predetermined torque, the adjusting element 19a is again rotatably coupled to the shaft 28 by the force of the spring element 34.

In FIG. 6b, the area enclosed in FIG. 6a is shown in an enlarged view. The adjusting element 19a of the adjusting device 19 has a receiving device 39 for a tool, preferably a screwdriver or a cordless screwdriver.

The receiving device 39 may have, for example, a cross-slit shape (e.g. PosiDrive profile), a square profile, a hexagonal profile or a hexagonal star shape (e.g. Torx profile), in which case the tool and the adjusting element 19a A positive form-locking connection can be formed for transmitting torque between.

The furniture drive 4 may have at least one damping device, for example a hydraulic piston-cylinder unit, for damping the movement of the actuating arm assembly 5 . Thereby, the movement of the movable furniture part 3 towards the closed end position and/or the open end position can be damped.

Claims (17)

A furniture drive device (4) for moving a furniture part (3) movably supported relative to a furniture cabinet (2), comprising:
a support (9) for attachment to a furniture cabinet (2);
an actuation arm with at least one movably supported actuation arm (5a, 5b, 5c, 5d, 5e) for moving the movable furniture part (3), arranged on the support (9); assembly (5);
a spring device (10) for applying a force to the actuating arm assembly (5), the spring device (10) applying force to the actuating arm assembly (5) via at least one point of action (18); a connected spring device (10);
a transmission mechanism (35) for transmitting the force of the spring device (10) to the actuation arm assembly (5);
An adjusting device (19) comprising at least one rotatably supported adjusting element (19a), wherein rotation of said adjusting element (19a) causes said at least one point of action on said actuating arm assembly (5) (18) an adjusting device (19) whose relative position is adjustable;
Equipped with
The furniture drive (4) has at least one overload protection device (33), which protects the furniture when the adjusting element (19a) is rotated with a torque below a predetermined torque. The adjustment element (19a) is connected to the transmission mechanism (35), and when the adjustment element (19a) is rotated with a torque exceeding a predetermined torque, the adjustment element (19a) is connected to the transmission mechanism (35). Furniture drive (4), characterized in that it is separate from the mechanism (35). Said overload protection device (33) has at least one rotatably supported shaft (28) and preferably comprises:
The overload protection device (33) has at least one spring element (34), preferably a compression spring, and the rotatably supported shaft (28) and the adjustment element (19a) , can be pressed against each other by the force of the spring element (34) and/or the at least one rotatably supported shaft (28) can be driven by the adjustment element (19a) and the at least one rotationally supported shaft (28) can be driven by the adjustment element (19a) and The adjusting element (19a) is connected to the shaft (28) when the adjusting element (19a) is rotated with a torque less than a predetermined torque, and is connected to the shaft (28) when the adjusting element (19a) is rotated with a torque exceeding a predetermined torque. ) is separated from said shaft (28) when rotated, and/or said at least one rotatable shaft (28) has a longitudinal direction (L3), said shaft (28) is displaced against the force of the spring element (34) in the longitudinal direction (L3) of the shaft (28) when the adjusting element (19a) is rotated with a torque exceeding a predetermined torque. and/or said at least one rotatable shaft (28) has a first toothing (37b) capable of meshing with a second toothing (37a) of said adjusting element (19a). are doing,
Furniture drive device (4) according to claim 1. The overload protection device (33) includes:
said adjusting element (19a) having at least one toothing (37a), preferably an end toothing, and/or having at least one spring element (34) with an opening (34a); said at least one spring element (34) and said adjustment element (19a), said adjustment element (19a) being accessible via said opening (34a) of said at least one spring element (34). and/or have at least one support device (29), in or on said support device, said adjustment element (19a) and/or if a rotatable shaft (28) is rotatably supported;
Furniture drive device (4) according to claim 1 or 2. The furniture drive (4) has at least one threaded section (17) with a longitudinal direction (L), and the point of action (18) of the spring device (10) is aligned with the axis of rotation ( 4. Furniture drive (4) according to claim 1, wherein the furniture drive (4) is adjustable along the thread section (17) by rotation of the adjustment element (19a) about R). The axis of rotation (R) of the adjusting element (19a) and the longitudinal direction (L) of the thread section (17) are at an angle to each other, and the axis of rotation (R) of the adjusting element (19a) ) and the longitudinal direction (L) of the threaded section (17) are variable in relation to each other during movement of the actuating arm assembly (5). ). The furniture drive (4) has at least one angularly movable coupling device (25) for transmitting the rotational movement of the adjustment element (19a) into the rotational movement of the thread section (17). Furniture drive device (4) according to claim 4 or 5, comprising. Said angularly movable coupling device (25) comprises at least one elastic member, preferably a bellows, a rubber molded element, a coil spring coupling, and/or at least one transmission, preferably a bevel gear transmission, Furniture drive (4) according to claim 6, characterized in that it has and/or a joint, preferably a universal joint or a cardan joint. The adjusting element (19a) of the adjusting device (19) faces the movable furniture part (3) in the assembled state of the furniture drive (4) and faces the support (9). Furniture drive (4) according to one of the preceding claims, wherein the furniture drive (4) is arranged in the front area. From claim 1, wherein the spring device (10) is supported in a first end region on the support (9) and in a second end region on the action point (18). 8. The furniture drive device according to any one of items 8 to 8. 10. Furniture drive according to claim 1, wherein the spring arrangement (10) comprises at least one coil spring, preferably at least one compression spring. The support (9) of the furniture drive (4), when assembled to the furniture board (6), is located at least in a predetermined area, preferably substantially completely, inside the furniture board (6). 11. Furniture drive device according to claim 1, wherein the furniture drive device is configured to be accommodated in a furniture drive device. The support (9) is of substantially rectangular shape, and preferably the ratio of the length (L1) of the support (9) to the height (H1) of the support (9) is 12. Furniture drive according to any one of claims 1 to 11, characterized in that it is envisaged that the ratio is greater than 1:0.7, preferably greater than 1:0.5. 13. The actuating point (18) acts on an intermediate lever (16) of the furniture drive (4), which is pivotably supported on the support (9). Furniture drive as described. The actuation arm assembly (5) includes a first actuation arm (5a) pivotable about a first joint axis (26) and supported pivotable about a second joint axis (27). at least one second actuating arm (5b), and the first joint axis (26) and the second joint axis (27) are arranged in the longitudinal direction ( L2), and the second joint axis (27) is arranged in a region on the front side of the support body (9) rather than the first joint axis (26). 14. Furniture drive according to claim 13, wherein the intermediate lever (16) is directly connected to the second actuating arm (5b) via a thrust lever (24). Furniture according to one of the preceding claims, characterized in that the adjustment element (19a) of the adjustment device (19) has a receiving device (39) for a tool, preferably a screwdriver. Drive device. Claims 1 to 15, comprising: a furniture cabinet (2); a furniture part (3) movably supported relative to said furniture cabinet (2); and for moving said movable furniture part (3). Furniture (1) comprising at least one furniture drive device (4) according to any one of the preceding paragraphs. The furniture cabinet (2) has a furniture board (6) for mounting a support (9), and the support (9) of the furniture drive (4) preferably has a 17. Furniture according to claim 16, wherein the furniture board (6) is substantially completely housed inside a recess (11) of the furniture board (6).

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